Garment or ironing press



Dec. 26, 1933. E. DAVIS GARMENT O'R IRONING PRESS Original Filed Oct. 11. 1929 IN VEN TOR.

ATTORNEYS.

Patented Dec. 26,

UNITED STATES GARMENT on moms. rimss ErnestDavis, Syracuse, N. Y., assignorctollhe' V v poration of New York 7 Application October 11, l V I 12 Claims.

- This invention relates to pressing machines,

as garment andlaundrypressing machines, and particularly to actuating means therefor, which actuating means includes a toggle, a booster arranged to come into action when the press is closed under little or minimum pressure in order to deliver final heavy pressure regardless of such conditions as the thickness of thework or the and in the combinations and constructions hereinafter set forth and claimed. s

In describing this invention, reference is had to the accompanying drawing in which like characters designate corresponding parts in all the views. 7 Figure 1 isa side elevation of a bodying my invention. 4

Figure 2 is an enlarged sectional viewon line 2-2, Figure 1. I

I Figure 3 is an elevation of the pedal mechanism shown fragmentarily in Figure 1'.

The-pressing machine here illustrated is of the machine emconventional type in which the cooperating press ing elements or jaws are a stationary buck 1 and a head 2 movable toward and from thebuck. The buck 1 is mounted on a suitable bracket or goose neck 3 which is'supportedona suitable frame 4; The head 2 is carried by a lever 5 pivoted between its ends at 6 to a standard 7 rising from 'the frame. 7 I

The means for actuating the head comprises a toggle and means for successively straightening the toggle and boosting the toggle to close the press under heavy pressure, and 'workingin the reverse order when 'thepress is opening.

' In the illustrated embodiment of my invention, the toggle and booster means are operated by power.

8 and 9 designate respectively the links of the toggle, these being pivoted together at 10, and pivoted at 11 and 12 to the base of the frame and to the rear arm of the lever 5 respectively. One of the links of the toggle as the lower link 9 consists of two'sections, as a rod 13 and a head 14 slidably mounted on' the rod, the head 14 being connected by the pivot 10 to the lower end of the'link 8. The head is bifurcated and the opposite arms thereof have bearings on the pivot 10.

' Prosperity Company Inc.,' Syracuse, N. Y., a cor- 1929. Serial No. 398,966 (Cl. 68--9)' I n v r I with a fixed shoulder or collar 16 which normally prevents sliding movement downwardly on therod 13, the head being movable upwardly from its starting position against the actionof aspring 17. This spring 17 is located within the sleeve or hub portion-15 of the head 14-and encircles the rod- 13 between ahead or shoulder 18on the upper end of the rod and-a seator shoulder'19 withinthe sleeve portion 15-.

Thus, during the movementof the toggle, from folded position,- the head 14 cannot slide downwardly' on the rod 13 owing to theshoulder'or collar 16 but the'head is capable'of upward sliding'm'ovement against the action of the spring 17 when the boostingforce is applied tothe lowerv endof the link 8. The toggle is moved from folded to or toward a straightened position in any'suitable manner, here shownas by a cylinder '20 having a piston therein, the rod 21 of which is pivoted at 22 to an'angularly forwardly extending-arm 23 at the 'upperend of the link 8, this 'ofiset; arm being provided on -a '-hubor tiltblock 24"at the upper endof the' link 8' which blockjhas bearings-mounted on the pivot 12. Thepivot 22' is disposed forwardly toward the press lever pivot 61 n J- The flow of'motive' fluid; as compressed air, to

and from the cylinder is controlled by a valve" within a'valve casing 25 having its'intake end 26 connected to a suitable source of supply and having apipe 27"connecting said casing 25 with the fin'takeend of the cylinder 20.

'The valve within the casing. 25 i intake and exhaust valve of the'conventional type usedwith' pressing machines, and is so located that the intake isnormally closed and'the ex'- hau'st open.-Thisvalve is'operat'ed'in any suit" able-manner as by a treadle 28"piv'oted at 29 to, the base of the frame to operate the valve stem 30, of the valve within thecaSing 25, through a -lever31 and a link 32 between the treadle 28an'd the lever 31. v i

t The motion of the treadle is transmitted through a compression spring 33. Depression of the treadle 28 permits air to flow -from the pipe 26" through the'casing 25 and pipe 2'7to the cylinder 20to actuate the piston therein, and hence, move the toggle from folded to any one of a number of nearly straightened positions and close the press under little pressure. The piston rod 21 constitutes a reciprocating actuator for the lever 5Jand toggle. H V

Upon releaseof the treadle- 28,'-the valves are returned to theirinormal positionand hence'air is free to exhaust from the cylinder 20 permits a combinedv V-shaped in cross section or have complementary wedge-shaped engaging faces, thea'rmflof the lever 34 being provided with a I-s hapedgroove 36 extending longitudinally of the booster lever and the lower end of the link 8being of wedge formation to fit the V-shaped groove. A suitable clearance 37 is prQVided atth'e bottom. of the groove in order to permit the wedge faces to firrnly engage with surface contact.

The boos r ve 341 else actuate prefer-- ab y y powe and; h newe eeneh te l sr e is a e li deret. .h vine enie en' he in, h ed 39 f. w his. oted a 50 t9 he bo s er lever- 34. The flow of motive fluid toand from the cylinder is controlled by valves located in a valve casing e1 conveniently mounted on the frame rt. a h vel e er er;erete v to e osition by means of a push button .912. Means as a diaphragm within, a diaphragm chamber 43 is provid d r ockin t a v v in h i e e position. The valves are released or unlocked to pen th e b a i ever. v

The intakeend of the valve casing 41 is connected to a source of workingfiuid by a suitable ee p n the t et m the e a in is connected by a pipe 46 with the cylinder 38.

e on ctie 9 the elvet in, t e a an a d the p a ion thereqf o m part of th s ve ion D, pression of the treadle 28 preliminarily los the resses ef re de ler be r n upon thev d r ssi n e cthe ush bu te 4 h b ee e e e ew l1be e ua e te e e herr eun er nal res ure nd th pr s w be lock d ni e closed position by the locking action of the valves due to he ia hra m n eeienhre m chamber 43 which is of conventionaldesign.

The pistons in each of the cylinders are single acting and the press is opened when the pressure in the cylinders is releasedby. countersprings 47' connected to the rear arm of the lever 5andto thelower part of the pressing machine frame 4.

In operation. he pr s fi t closed b pressing the pedal 28 and when the toggle straightens, the push button 42-may be depressed causing the booster lever 34 to be actuated boosting the toggle link' 8 and head 14 upwardly against the action of the spring 17. When the push button 42 is operated the treadle 28 may be released. Upon operation of the trip lever 44 which releases the booster lever 3&1, the-toggle will fold and the press open-under the influence of the countersprings 47. Owing to thespring 1.7,: this folding operation is noiseless and without shock, as the spring'prevents a violent taking-{up of the lost motion between the links 8 and 9 or between the head 14 and the rod 13;

The toggle 8, 13 preferablyfldoes not reach a full-straightened or dead-center position and this enables the toggle knee orjoint at 10.to more readily break rearwardly to open the pressafter the force of the. motor .means is removed, from down of the'paddi g ,1 and its diminishing thicklink 8 does not travel quite so far up on the lever ,34, but if the padding is old and worn the link 8 moves further onto the lever. In either event, the press head 2 closes with the same force and power of the motor 20 which is a lower power 39 motor with smaller bore than the motor means 38.

- After the link 3 has assumed any one of its possible numerous and pressure-adjusting positions on the rear end of lever 4 t0 lightly close the press, the high power motor 38 is energized to produce final jaw compression which is substafitially constant and does not vary with the changing of the pad 1, The wear and breaking Hess, 0, change 1n it -to new and thick padding, does not materially alter the uniform jaw pressure attained-bythisinvention. Likewise there are nomanual-pressure adjusting means for an operator to use and so the ironing-jaw pressure Q smt e om th 9ure sin e t we nown. hat en e tete may r ma et'n en ly e d hi meeh n end k e it n edi st: merit e-enadven ae ex s ialt hi in e e ently e nstant eu emet e siiust ne eans. he, O era on... which takes. n ae ever t me. e es eleeee ha hen e rn er ets out i. s m n v e tar a u if m,- ssure is enee ned- 1 The construction and arrangement of the toge e bl c e d Ofie te m iee e n ventase s wi l be enby Q eide i s o line;

led

I Open-press eeit ee. n Fi re he.-p et 2.

fieet fr m, the ax of 11 1 28. a d n itial e tinet e'1teeele .knee l9; ow rd st ai htened; 16 position. Less power ofthe closingmotor 20 is; q ire ee ert. h st a t ni a ion a th le wh n-e e rinethe u ward-thru at t e; o n instea Qt di eetl pply n t up;

thrust at pivot 12. By connecting the pistcnrod 375.

21 t the-ease; .h eese vet 2. he e .is a. pronounced tendency for the togglecenterlfl tomq fe. a il s t St Ii' QQF ZQ-WMQ pr s rele i p s tion- This distribution of the force of the low power. ee n ,metQr' mv qe meeth. ie iidhigh Speed hines. 1

. The offset blgck pivot 22 for the low power esi emet .2 1 ee e u er dis etadvames whi h un ti nshen he res ad ac nt to its initially. closed position. In this position- 5 he p vet. 2 i Sub a iall to t right of the piyot'12, as shown in-Figurgel, from the line of: pplieet en e po er f om th l w o -me er. 9 whi h l n of power ou d e e ie e ,te by the piston rod 21. As a consequence, there a positive turning or-p ivotin.g., eifort applied to e link fir ueh h n v t- 2. t0 ro e-the; link. 8 in a counter-clockwise direction about the pivot 12; This positive turning effort upon the? link 8 bringsthe end ofthe link above and into contact with the booster lever34at=theend of the preliminary closingmovement of the. pressl What I claim is:-

1. In a pressing'maehine, cooperating pressing [0 elements, one ofwhich is movable toward and from the other, means for actuating the m0vable element including a toggle having a movable endwise link, one of the links of the toggle including two sections one of which is slidable end-: 5 wise relatively to the other-and has a 'shoulderpreventing endwise m'ovenlentin one direction: during straightening .01" the itoggle, the. slidable sectionvbeingpivotedto the .other link of the: toggle, connections between the latter linkand thelmovable pressing element to actuata the-latif wise portioniiaving-ccacting wedgesh'apedenter,;a spring interposedbetween the sections, and means'formoving-thetoggle toward straight'-' ened -positio n and thereafterthrusting' the link connectedto the movable pressing element endwise to produce final pressure between the pressin'g elements after the toggle is in said i, straightened position.

2. In'a pressing machine, cooperating pressing elements, one of which is movable toward and from the other, means for actuating the movable element including a toggle having a first and second link,,the first link of the toggle including two sections one of which has a bifurcated end pivotally connected with the second link of the toggle and a sleeve slidable endwise on the other section of said first link, operating connections between the second link and the movable pressing element to actuate the latter, an abutment on the first link, a spring located in the sleeve and thrusting the latter against said abutment, and means for successively straightening the toggle and moving the second link endwise, a

part of the last mentioned means extending between the bifurcated end and coacting with the adjacent end of the second link.

3. In a pressing machine, cooperating pressing elements, one of which is movabletoward and from the other, means for actuating the movable element including a toggle having a first and second link, the first link of the toggle including two sections one of which has a bifurcated end pivoted to the second link of the toggle and a sleeve slidable endwise on-the other section of said first link, connections between the isecond link and the movable pressing element to I actuate the latter, an abutment on the first link,

a spring located in the sleeve and thrusting the sleeve portion of the head against said abutment, and means for successively actuating the toggle :toward straightened position and moving the second link endwise, a part of the last mentioned means extending between the bifurcations of the head and coacting with the adjacent end of the second link and having frictionally coacting ..wedge faces.

4. In a pressing machine, cooperating pressing elements, one of which is movable toward and from the other, means for actuating the movable pivoted to the second link of the toggle and a sleeve slidable' endwise on the other section of said first link. operating connections between the f second link and the movable pressing element to actuate the latter, an abutment on the first link,

a spring located in the sleeve and thrusting the latter against said abutment, and means for successively actuating the toggle toward straightened position and moving the second link endwise, a part of the last mentioned means extending between the bifurcated end and coacting with the adjacent end of the link, said part having frictionally coacting wedge faces of V-shaped for- "mation.

" z'ltion endwise. and the booster means and the endgaging faces.

6. In a pressing machine, afram'e, cooperating" pressing elements one of which is movable toward and from the other, a lever carrying the movable element, toggle links pivoted together and respectively to the frame and to said lever, the link pivcited to the leverhaving an angularly extending arm near the end thereof adjacent the lever, and a reciprocating actuator connected to said arm.

7. In a pressing machine, a frame, cooperating pressing elements, one of which is movable toward and from the other, a lever carrying the movable element, toggle links pivoted together and respectively to the frame and to said lever, the link pivoted to the lever having an angularly extending arm near its end adjacent the lever, a reciprocating actuator connected to said arm, the link connected to said lever being shiftable endwise relatively to the other link, and booster means for effecting the endwise movement of the link connected to said lever.

8. A garment or ironing press comprising. a frame and coacting press jaws, a lever fulcrumed in the frame and carrying one jaw to actuate it in relation to the other jaw, a link pivotally connected to the lever and having an offset arm disposed toward the fulcrum, link means operatively mounted in the frame and connected with the link to guide its movement, and motor means pivotally connected with the offset arm.

9. A garment or'ironing press comprising a frame supporting a press jaw, a press lever fulcrumed in the frame and carrying another press jaw, atoggle pivoted at one end-on the frame, a

pivot directly connecting the other end of the toggle to the lever, a second pivot carried by the toggle at its end connected with the lever, said second pivot being disposed proximate the first pivot and between said first pivot and the fulcrum. and means operatively connected with the second pivot to thrust it upwardly to impart astraightening action to the toggle and a swinging motion to the press lever.

10. A pressing machine comprising coacting press jaws, a frame, a lever fulcrumed on the frame and attached to one jaw, a toggle including an upper link secured to a hub which is pivotally connected with the lever and a lower link pivoted on the frame, said links being operatively connected at their adjacent ends to provide a toggle knee which swings relatively to the frame to fold and straighten the toggle, an arm formed on the hub and extending at an angle to the upper link and towards the fulcrum of the lever, and operating means connected with the arm on a pivot disposed proximate the hub pivot in the lever, whereby the force of the operating means acts initially to tilt the hub and thereby actuating the knee toward straightened position and actuates the lever to close the press.

11. A garment or ironing press comprising a frame and coacting press jaws, a lever fulcrumed in the frame and carrying one jaw to actuate it in relation to'the other jaw. a link pivotally connected to the lever and having an offset arm disposed toward the fulcrum, booster means normallylspaced from operative position with the link, link means operatively mounted in the frame and connected with the link to guide its movemovable with respect to the other to open and close the press. actuating mechanism for. the.1novable pressing jaw including an extendible toggle,

a booster lever pivoted between its en ds on the frame. means for closing the press and moving the-toggle. into substantially straightened t,

tion with a portion thereof overlying one end of the booster lever, and complemental interlocking faces on the booster lever and that portion of the toggle overlying the booster lever for holding thetoggle in substantially straightened position during the boosting thereof. V ERNEST DAVIS.

ion 

